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Date:   Sat, 24 Dec 2016 11:15:08 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     James Bottomley <James.Bottomley@...senPartnership.com>,
        linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
        Manish Rangankar <manish.rangankar@...ium.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Nilesh Javali <nilesh.javali@...ium.com>,
        Adheer Chandravanshi <adheer.chandravanshi@...gic.com>,
        Chad Dupuis <chad.dupuis@...ium.com>,
        Saurav Kashyap <saurav.kashyap@...ium.com>,
        Arun Easi <arun.easi@...ium.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: Re: linux-next: build failure after merge of the scsi tree


* Stephen Rothwell <sfr@...b.auug.org.au> wrote:

> Hi All,
> 
> On Thu, 22 Dec 2016 16:56:34 -0800 James Bottomley <James.Bottomley@...senPartnership.com> wrote:
> >
> > On Fri, 2016-12-23 at 11:45 +1100, Stephen Rothwell wrote:
> > > Hi James,
> > > 
> > > After merging the scsi tree, today's linux-next build (x86_64
> > > allmodconfig) failed like this:
> > > 
> > > drivers/scsi/qedi/qedi_main.c: In function 'qedi_init':
> > > drivers/scsi/qedi/qedi_main.c:2073:2: error: implicit declaration of
> > > function 'register_hotcpu_notifier' [-Werror=implicit-function
> > > -declaration]
> > >   register_hotcpu_notifier(&qedi_cpu_notifier);
> > >   ^
> > > drivers/scsi/qedi/qedi_main.c: In function 'qedi_cleanup':
> > > drivers/scsi/qedi/qedi_main.c:2113:2: error: implicit declaration of
> > > function 'unregister_hotcpu_notifier' [-Werror=implicit-function
> > > -declaration]
> > >   unregister_hotcpu_notifier(&qedi_cpu_notifier);
> > >   ^
> > > 
> > > Caused by commit
> > > 
> > >   ace7f46ba5fd ("scsi: qedi: Add QLogic FastLinQ offload iSCSI driver
> > > framework.")
> > > 
> > > Interacting with commit
> > > 
> > >   8e38db753d95 ("cpu/hotplug: Remove obsolete cpu hotplug
> > > register/unregister functions")
> > > 
> > > from the tip tree.  
> > 
> > Well, that's a bit of a problem given that the SCSI tree has a pending
> > pull request including this driver.
> > 
> > Thomas, can you do another fixup in your tip tree like you did for the
> > two BNX2* drivers?
> 
> OK, so this is now a problem for the tip tree merge since James tree
> has been pulled by Linus.

Yeah, we'll handle it - that's why the final chunk of changes were left to after 
-rc1, to not cause such merge conflicts upstream.

For now I've excluded the relevant -tip side commits from the linux-next branch.

Thanks,

	Ingo

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